Browse Publications Technical Papers 2016-01-0073
2016-04-05

APP-Based Diagnostics of E/E Systems with ISO Standardized Technology (MVCI, ODX, OTX, and UDS on DoIP) 2016-01-0073

Passenger cars are equipped with an OBD connector according to SAE J1962 / ISO 15031-3. Passenger cars that support ISO UDS on DoIP use the same connector with Ethernet pins according to ISO/DIS 13400-4 (Ethernet diagnostic connector).
If external test equipment is connected to the Ethernet diagnostic connector via a 100BASE-TX cable with the RJ45 connector at the tester, a VCI is not necessary anymore.
With a device that fits the Ethernet diagnostic connector physically and acts as a converter between the Ethernet signals and WLAN, external test equipment that supports wireless communication, can be connected to the vehicle. Examples for such wireless external test equipment include Android/iOS- based smart phones and tablets with purpose-made applications (APPs).
The software components of external test equipment are standardized in ISO 22900 (MVCI). The MVCI D-Server processes data in ODX (ISO 22901) and sequences in OTX (ISO 13209).
For an APP-based wireless communication with a vehicle that supports Ethernet, the MVCI D-Server, the ODX data and the OTX sequences have to be implemented on operating systems like iOS or Android.
The APP-based tester is entirely based on international standards and supplements the functionality of a workshop service tester.

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